Which disorder may involve a person being perfectionistic and accumulating objects?

The disorder characterized by perfectionism and the accumulation of objects is indeed Obsessive Compulsive Personality Disorder (OCPD). Individuals with OCPD are typically preoccupied with orderliness, perfectionism, and control, often at the expense of flexibility and efficiency. This can manifest as a tendency to find it difficult to make decisions or delegate tasks due to a desire for everything to be done just right. Additionally, people with OCPD may accumulate objects because they have a strong attachment to items that they believe could be useful or important, leading to clutter.

This perfectionistic drive may also hinder their ability to enjoy leisure time or relationships, as they may prioritize their need for organization and control over more spontaneous or relaxed interactions. Thus, the traits of perfectionism and hoarding behavior align closely with the diagnostic criteria for OCPD.